Chemical and Physical Change

Front

What is a Chemical Change?

Back

A process that transforms substances into new substances with different properties.

Front

What is a Physical Change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

Give an example of a Chemical Change.

Back

Burning wood, which produces ash and smoke.

Front

Give an example of a Physical Change.

Back

Tearing paper into small pieces.

Front

What happens to salt when it dissolves in water?

Back

It undergoes a physical change, remaining chemically the same.

Front

What is the result of burning toast?

Back

A chemical change occurs, producing carbon and other substances.

Front

Is melting ice a Chemical Change or a Physical Change?

Back

It is a Physical Change.

Front

What is the main difference between Chemical and Physical Changes?

Back

Chemical changes create new substances; physical changes do not.

Front

What is an example of a reversible Physical Change?

Back

Freezing and melting water.

Front

What is an example of an irreversible Chemical Change?

Back

Rusting of iron.